baber/WOPTO huggingface dataset:
Patent GB-750804-A (GB)
Title: Improved process for the production of crystalline procaine penicillin
Inventor: LEVIN RONALD
IPC: A61K31/43
Filed: 1953-07-10
Abstract: Procaine penicillin mainly in platelet form is produced by crystallizing the procaine penicillin in the presence of a water-soluble ethyl hydroxyethyl cellulose.  Preferably a salt of procaine such as the hydrochloride, phosphate or acetate is reacted with a metal or amine salt of penicillin, e.g. the sodium salt, in aqueous solution in the presence of 0.05 to 1 per cent and especially 0.1 per cent (w/v) of the ethyl hydroxyethyl cellulose.  The concentration of penicillin in the reaction solution should not exceed 60,000 units per mil.  The crystallization may be carried out in the presence of buffers such as sodium citrate and preservatives such as phenyl mercuric nitrate and sodium metabisulphite. Specification 681,140 is referred to.
Patent GB-475338-A (GB)
Title: Improvements in and relating to horizontally disposed electric hot water reservoirs of the overflow discharge type
IPC: F24H9/20
Filed: 1937-07-12
Abstract: 475,338. Automatic control systems. STIEBEL, T. July 12, 1937, No. 19257. [Class 38 (iv)] [Also in Group XI] Temperature.-An immersion heater or heaters g arranged in a horizontal water storage heater near one or both ends of a horizontal baffle plate l is controlled by a thermostat h arranged below the plate. The inlet and outlet pipes b, c are arranged at the bottom and top of the heater respectively.
Patent GB-1136545-A (GB)
Title: Improvements in or relating to sheet feed devices for thread book stitching machines
Inventor: ROTH JOHANNES
IPC: B65H5/32
Filed: 1966-05-02
Abstract: 1,136,545. Feeding sheets. LEIPZIGER BUCHBINDEREIMASCHINENWERKE VEB. 2 May, 1966, No. 19268/66. Heading B6B. Superposed folded sheets 16 are fed to a book-stitching machine along a saddle 1 by grippers 5 secured to a travelling endless chain 6, and by feed rollers 7 which feed the sheets at a faster rate than the chain. The chain 6 is supported on wheels 2, 3, 4 on the saddle 1, and the grippers 5 each comprise a base 11, and a jaw 12 pivoted thereto at 13, and urged towards the base by a spring 14. Each gripper is opened to receive sheets 16 by a fixed member 8, and opened by a member 9 to release the sheets to the feed rollers 7. The front edge 15 of each gripper jaw 12 is a knife edge whereby, in the event of a jam of sheets adjacent the rollers 7, the gripper can force its way through the sheets on its descent towards the wheel 4. The sheets 16 may be fed manually or automatically to the chain 6. The opening member 9 may be coupled by a lever system 10 to the rollers 7 for automatic opening of the grippers 5. The drive wheel 4 of the chain 6 may be connected to an overload device which stops the drive if the sheets 6 are jammed near the rollers 7. The two members 8, 9 may be relatively adjustable.
Patent GB-1180679-A (GB)
Title: Arrangement for Supplying Steam or Inert Gas into the Inter-bell Space of blast-furnace charging equipment
Inventor: KAILOV VALENTIN DMITRIEVICH
IPC: C21B7/18
Filed: 1968-04-24
Abstract: 1,180,679. Charging blast furnaces. CHEREPOVETSKY ORDENA LENINA METALLURGICHESKY ZAVOD. 24 April, 1968 [24 April, 1967], No. 19349/68. Heading F4B. The space between the upper and lower bells 7, 8, respectively, of a blast furnace charging apparatus is supplied with a whirling annular curtain of inert gas or steam through a series of circumferentially spaced inlet pipes 1, the outlets of which discharge downwardly and tangentially round the bottom of small bell 7. On opening of the small bell 7, air entrained with the descending charge thoroughly mixes with the inert curtain, before it can come into contact with blast furnace gas contained in the inter-bell space, so avoiding the formation of explosive mixtures.
Patent GB-1477205-A (GB)
Title: Method and apparatus for making dart flights
IPC: F42B6/00
Filed: 1975-04-16
Abstract: 1477205 Forming dart flights CLARKE & MERRIFIELD Ltd 16 April 1975 [2 May 1974] 19354/74 Heading A6S [Also in Division B5] Apparatus for making dart flights having three, four or more blades from a blank of thermoplastics sheet material 1 e.g. polyester comprises a die 5 including an aperture 6 having three or more equi-angularly spaced radiating arms, a device 7 for pushing the sheet material 1 through the aperture 6 to fold it into an element having three or more blades, each blade being formed from two portions of the sheet material folded together, and means e.g. jaws 9 for heating and pressing together the two portions constituting each blade so that they remain together. The blank 1 may be cut to shape and grooved by matched male and female tools. The device 7 may comprise three or more blades 8. The leading edges 11 of the blades 8 and the edges 10 of the arms may be chamfered. Each flight blade may be pressed by a respective pair of jaws or, as shown, by a pair of jaws 9 shared with two other flight blades. The blank may have a surface coated with a heat sensitive adhesive :for joining the blade portions together. The blank may be fed manually or by a suction cup to the die 5.
Patent GB-432929-A (GB)
Title: Improvements relating to cycle mudguards
IPC: B62J15/00
Filed: 1934-06-30
Abstract: 432,929. Cycle mudguards. RUDGEWHITWORTH, Ltd., and WOOLLARD, F. G., Crow Lane, Coventry. June 30, 1934, No. 19385. [Class 136 (i)] A cycle mudguard is provided at one or both ends with a separate reinforcing tip of sheet metal, &c., arranged transversely across the end in order to prevent damage. The reinforcing- piece a is made from a sheet of metal folded on itself and shaped to conform with the cross-sectional contour of the mudguard b, and may be secured in place by sliding its inner part into the opening between the free edge of each bead c and the inner surface of the guard b. The piece a may, in addition, be soldered to the inner surface, &c. of the guard b. In modifications, the reinforcing- piece a is secured to the guard b by one or more tangs adapted to be folded over the edges of the guard.
Patent GB-364530-A (GB)
Title: Improvements in window shutters
IPC: E06B9/62
Filed: 1930-06-26
Abstract: 364,530. Window shutters. DEMEULENAERE, M., Grand Hotel, Coqsur-Mer, Belgium. June 26, 1930, No. 19448. Convention date, July 13, 1929. [Class 20 (iii).] A roller shutter V wound on to a drum A is balanced progressively by a series of blades or articulated sections La suspended by a belt or cable C from a secondary drum A<1> and oppositely wound. When the shutter is raised, all the sections La 'are supported by the floor, while as the shutter is being lowered the sections are successively raised and supported by the cable C. Each section may comprise several blades arranged side by side, in accordance with the weight of the shutter to be balanced, and flats s limit the relative movement between the sections.
Patent GB-1042158-A (GB)
Title: Process for producing alumina balls
IPC: B01J20/08
Filed: 1963-05-16
Abstract: Alumina balls are produced by providing activated alumina particles having a loss on ignition of from 8 to 14% by weight, forming balls from a mass of the particles, the particles having a particle size distribution by number of at least 88% less than 45 microns in maximum dimension, 20-35% less than 5 microns in maximum dimension and a median particle size of 8-17 microns, and thereafter heating the balls.  The activated alumina particles may be prepared by heating hydrous alumina at a temperature of 500 DEG  F. or above in a tower, tunnel or kiln, and may be ball-milled to give the required particle size distribution.  The balls may be formed by tumbling in a rotating cylinder-type machine while spraying with a binder liquid.
Patent GB-720541-A (GB)
Title: Improvements relating to cathode ray tubes
Inventor: COLBORNE RONALD HENRY
IPC: H01J29/87
Filed: 1951-08-18
Abstract: 720,541. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 12, 1952 [Aug. 18, 1951], No. 19503/51. Class 39 (1) In a cathode-ray tube comprising a metal body 1 with a shaped rim 3 forming a seat for the glass plate 5 to which it is heat sealed, a reinforcing member 7 around the rim counteracts the tendency for the rim to be bent away from the glass plate. The reinforcing member may consist of a split annulus formed as a number of sections, and is clamped around the rim by means of draw bolts 9. The reinforcing member may form part of the tube mounting. This mounting may be the mask defining the viewing area. The metal body may be of chrome-iron and the reinforcing member also of chrome-iron or of mild steel.
Patent GB-715696-A (GB)
Title: Improvements in or relating to composition for addition to iron or steel
IPC: C21C1/10
Filed: 1951-08-20
Abstract: A composition of matter, in mixture or alloy form, for addition to iron or steel, particularly for the production of nodular graphite cast iron comprises 5-25 per cent. Mg. 20-45 per cent. Si. 2-12 per cent. Mn 20-60 per cent. Fe, up to 2 per cent. Ni and up to a total of 5 per cent. of S, P, C, Cr, V, Ti and Mo.  Al, if present, should be less than 1 per cent.  The ratio of Si to Mg, and Mg to Mn. are both 1-6.  An addition of composition containing Mg equal to 0-12-0.2 per cent., plus 1 1/2 times the S content, may be added to iron so as to leave 0.04-0.1 per cent. Mg in the solidified cast iron. Specification 630,070 is referred to.
Patent GB-961080-A (GB)
Title: Improvements in or relating to apparatus for forming and delivering layers of paste-like substances
Inventor: JOHNSON REGINALD FRANK
IPC: A23G3/02
Filed: 1962-05-22
Abstract: 961,080. Coating baker's goods. ROSE BROS. (GAINSBOROUGH) Ltd. May 20, 1963 [May 22, 1962], No. 19565/62. Addition to 926,509. Heading A2A. The apparatus of the parent Specification is provided with means for adjusting the outward, cream-compressing stroke of the piston-actuating means thereby allowing correction to be made during operation of the apparatus for changes which may occur in the density and texture of the filling provided e.g. cream, so that a uniform layer is always applied to form the sandwich. The arms 24 carrying the track members 22 are rotatably mounted on a shaft 27 and actuated by a rotatable cam 28 secured to a cam shaft 29, the cam 28 being arranged to engage a roller 31 carried by an extension 32 of one of the arms 24. To allow for adjustment of the outward stroke of the piston 16 an abutment carrying arm 33 is pivotally mounted on the shaft 27 and provided with a threaded abutment member 34 the protruding tip of which is arranged to be engaged by a stop 36 formed on the one arm 24 as that arm is allowed to move outwardly (under spring action) by its cam 28, the arm 33 itself being operated in timed relationship with the movement of the track members 22 by a rotatable cam 37 secured to the shaft 29 and arranged to engage a roller 38 carried by an extension 39 of the arm 33. To ensure constant layer thickness after the outward stroke of the piston 16 the piston rollers 21 are guided by extensions 51 to the track member 22 of sufficient length to guide the rollers 21 during movement of the pistons across the mouth of the cream supply hopper 48.
Patent GB-209028-A (GB)
IPC: H01J61/98
Filed: 1923-07-31
Abstract: 209,028. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. fiir Elektrische Gl³lampen). Dec. 22, 1922, [Convention date]. Metals, powdered, obtaining coherent masses from.-In making electrodes for tungsten arc lamps, the pulverized metal is pressed into the required form, preliminarily sintered and if necessary worked mechanically to present a polished surface and finally secured to a carrier stem of tungsten and heated to a white heat. The electrodes are preferably in the form of hemispheres m, Fig. 1, or flat plates, and the stems n are preferably placed obliquely in recesses formed by machining or otherwise.
Patent GB-615685-A (GB)
Title: Solid diazo complexes
Filed: 1946-07-01
Abstract: Solid diazo complexes, suitable for the preparation of photographic diazotypes, are manufactured by adding a sulphonated resinous compound to a solution of a diazotized amine.  Examples describe the combination of: (1) diazotized p-diethylaminoaniline and a polymerized sodium salt of formaldehyde naphthalene sulphonic acid; (2) the diazo compound of (1) and a polymerized sodium salt of a short chain alkyl naphthalene sulphonic acid; (3) diazotized 2 : 5-dichloraniline and the resin of (1); the product, ground with sodium sulphate, gives a red dye when coupled with R salt; (4) diazotized 7-amino-2-hydroxy-4-methylquinoline and the resin of (1); the product, ground with sodium sulphate, yields an orange dye when coupled with 2-naphthol-3:6:8-trisulphonic acid; (5) diazotized p-nitraniline and sulphonated coumarone-indene resin; the product, blended with sodium sulphate, gives a red dye when coupled with R salt; (6) tetrazotized dianisidine and a sulphonated polybenzyl resin; the product couples with phloroglucinol to form a reddish blue dye.  Additional sulphonated resins specified are polymerized sulphonates derived from benzene, naphthalene anthracene, diphenyl, toluene, xylene, phenol, cresol, naphthol, anisole, phenetole, resorcinol, hydroxydiphenyl and styrene.ALSO:The Specification as open to inspection under Sect. 91 comprises an example in which cotton is dyed scarlet by padding it with an alkaline solution of 2 : 3-hydroxynaphthoic acid o-anisidide and immersing it in a solution of a diazo complex from diazotized 2 : 5-dichloraniline and a polymerized formaldehyde naphthalene sulphonic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-918461-A (GB)
Title: Improvements in magnetic tape recorders
IPC: G11B15/00
Filed: 1959-06-08
Abstract: 918,461. Dubbing magnetic tapes. K.G.M. ELECTRONICS Ltd., and ROE, D. O. June 8, 1959, No. 19628/59. Class 40 (2). A magnetic tape recorder in which a first tape is driven by a capstan 6 and pinch-roller 7, has a second pinch-roller 9, driving a second tape in the opposite direction past a recording head 10 for dubbing desired parts of the first tape. A pulley associated with the second pinch-roller 9 may belt-drive the second take-up spool 16 and spool-arms 12, 17 may be stowed within the compass of the deck. Alternatively, the additional components relevant to the second tape may be mounted on a unit detachable from the recorder. In a second embodiment (Fig. 2, not shown), double-gap heads are mounted in the space between the two tapes for selective engagement with either and the second tape may be a loop with aligned play-back/erase/record heads to provide delayed recording on the first tape. The capstan 6 may be stepped to provide differing drive speeds for the two tapes.
Patent GB-873125-A (GB)
Title: Benzoyl acetamide colour couplers and their use in the production of coloured photographic images
Inventor: JAEKEN JAN
IPC: G03C7/36
Filed: 1958-06-19
Abstract: The invention comprises benzoyl acetamide derivatives of the formula <FORM:0873125/IV (b)/1> wherein R represents an alkyl group containing a linear chain of at least 10 carbon atoms (e.g. dodecyl, hexadecyl or octadecyl) or a substituted alkyl group in which the substituent contains an alkyl radical of at least 8 carbon atoms (e.g. a para-isooctylphenoxyethyl group), and Y represents a heterocyclic radical of the furan, thiophen, thiazole, oxazole, imidazole, 1:3:4-thiadiazole, 1:3:4-oxadiazole, 1:2:4-triazole, pyridine, quinoline, diazine or 1:3:5-triazine series.  The above compounds and other compounds in which Y is a heterocyclic radical in general may be prepared by condensing an appropriate alkoxybenzoyl acetic acid alkyl ester with an aminosubstituted heterocyclic compound.  The heterocyclic substituent Y may contain substituents such as carboxyl, carbomethoxy, carbethoxy, hydroxy, nitro, amino, acylamino, phenyl and/or methyl groups. Specifications 774,421 and 873,124 are referred to.
Patent GB-381590-A (GB)
Title: Improvements in or relating to floor coverings or like materials
IPC: D06N3/02
Filed: 1931-07-08
Abstract: Benzyl cellulose is incorporated with a plasticizer comprising one or more aromatic ethers of a polyhydric alcohol such as glycerol and vegetable fillers such as cork dust, sawdust, &c. are added.  The product is used with or without a fabric backing for floor coverings. A suitable aromatic ether is dicresylin (glycerol dicresyl ether). Minor proportions of other plasticizers may also be employed; polychlornaphthalenes and chlorinated diphenyls are mentioned in this connection.  A resin such as ester gum may also be added to the composition. Specification 358,393 is referred to.
Patent GB-1072703-A (GB)
Title: Improvements in and relating to methods of manufacturing semiconductor bodies
Inventor: KLEIN THOMAS
IPC: H01L21/00
Filed: 1964-05-12
Abstract: 1,072,703. Semi-conductor devices. MULLARD Ltd. May 12, 1964, No. 19744/64. Heading H1K. A method of manufacturing a semi-conductor body comprises forming a cavity in an initial semi-conductor body, at least the final step in forming the cavity being a chemical etching step, and epitaxially depositing semi-conductor material in the cavity to form a junction. The junction may be of the PN, PP+, or NN+ type and/or may be a heterojunction. As shown, Fig. 2, a wafer 1 of P-type silicon has a shallow cavity 3 and a deeper main cavity 2 etched in one face in two separate etching steps using masks formed by etching windows in oxide layers using a photo-resist technique. Shallower cavity 3 has a depth equal to the maximum desired tolerance for cavity 2. The depths of the cavities are measured, the remaining oxide layer is removed and the wafer is prepared by degreasing, boiling in nitric acid, removing the resultant oxide coating in hydrogen fluoride vapour and briefly etching in a mixture of hydrofluoric and nitric acids. The wafer is placed in a furnace in an atmosphere of hydrogen into which is introduced silicon tetrachloride and phosphorus trichloride to grow an N-type epitaxial layer 5 on body 1 to a depth slightly greater than that of cavity 2. The epitaxial layer is polished to line 7 this being determined by using a staining etchant which produces visible differentiation between P and N-type materials. As shown, Fig. 4, a diode is produced from the resultant wafer by growing a layer of oxide on the surface, removing this layer on the lower face of the wafer and forming a window over cavity 2 filled with epitaxial material. The wafer is alloyed to a strip or header 10 made of " Kovar" (Registered Trade Mark) coated with, or with the interposition of a foil of, gold which may contain boron. Gold-antimony alloy 13 is applied through the window and is alloyed to the epitaxial layer. An aluminium contact 14 is evaporated on to the surface of the wafer and may be thickened by electrodepositing material on to it. Alternatively a wire can be connected to alloy 13 by thermo-compression bonding. A transistor, Fig. 5 (not shown), may be manufactured from an N-type wafer in which a shallow cavity is filled with P-type epitaxial material doped with boron, polished to the required level determined by measuring the sheet resistivity of the epitaxial material in the cavity or in a monitoring cavity with a larger area, and producing an emitter region by diffusion, alloying or epitaxial deposition. Ohmic contacts can be made to P- and N-type materials simultaneously by diffusing phosphorus into the surface of the N-type region, evaporating aluminium on to the surface and alloying. The compositions of suitable etchants for the various operations are described. The invention may be used to produce other circuit elements such as resistors and capacitors in integrated circuits.
Patent GB-221205-A (GB)
Title: Manufacture of improved artificial shellac
IPC: C08G75/00
Filed: 1924-08-21
Abstract: Artificial shellac is prepared by mixing with a base, for example ammonia or organic bases but excluding alkali sulphides, an artificial resin obtainable by sulphurizing an aromatic oxy-compound, preferably after treatment with a compound containing active methylene groups and with agents imparting elasticity, such as wax, or constituents thereof, esters, rubber &c.  The admixture with the base may take place in presence of a solvent or diluent.  In examples a sulphur-phenol resin is brought to reaction with formaldehyde in presence of cyclohexylamine, beeswax and formaldehyde added and the resin further hardened, and the mass finally homogenized with addition of cyclohexylamine and water; sulphur-phenol resin is hardened with formaldehyde and ammonia, Japan wax and a benzene solution of rubber added, the resin being then further hardened and kneaded with ammonia solution.  Instead of beeswax or Japan wax, resino-tannol ester, an acylated sulphur-phenol resin such as the benzoyl ester, tricresylphosphate, cetyl alcohol, or benzyl benzoate may be employed.  A resin obtained from phenol and sulphur chloride is treated with formaldehyde in presence of dimethylcyclohexylamine, beeswax and rubber solution are added and finally to the product is added aqueous ethylamine, aminopropandiol, piperazine, piperidine or the like.  Specification 186,107 is referred to.  Phenol-aldehyde and phenol-ketone condensation products; polymerized aldehyde resins; acid resins; oxidized toluene resin; "toluene sulphamide resin."-The Specification as open to inspection under Sect. 91 (3) (a) describes the process as applicable to all artificial resins and instances those referred to above and as examples of acid resins gives polymerized lactic or glycollic acid resin and of aldehyde resins, those from acetaldehyde, benzaldehyde, salicylaldehyde and acrolein. In further examples Albertol-shellac K-6-S is cautiously melted with alcohol and cyclohexylamine and commercial Albertol-shellac with alcohol and a -naphthylamine and the mixture emulsified; a phenol-formaldehyde condensation product is mixed with dimethylcyclohexylamine, water and tricresylphosphate; Sapin-artificialshellac is fused with cyclohexylamine, water and wax; and beeswax and cyclohexylamine are added to an acetaldehyde resin. This subject-matter does not appear in the Specification as accepted.
Patent GB-849642-A (GB)
Title: Improved extensible bracelet
IPC: A44C5/08
Filed: 1958-06-21
Abstract: 849,642. Bracelets. MAJEWICZ, H. A. June 19, 1959 [June 21.1958], No.19948/58. Class 43 An extensible bracelet comprises a plurality of hollow links 10, 11 arranged in two layers in staggered relationship, the sole connection between the links being spring stirrups 16 which join each link of one layer to the two opposed links of the other layer. The links are triangular in shape, the side walls being notched and bent to provide an edge 15 which engages and anchors the stirrups which have arcuate ends 17 which extend beyond the edges of the stirrups. The ends of the stirrups may be twisted. A sleeve may enclose the centre of the stirrup. The springs are spaced by shoulders 18 extending transversely to the stirrups.